DMPP-2

Planetary system · 449.9 light-years away · also HD 11231, HIP 8501

DMPP-2 is 450 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this F5 V star; the first was found in 2019 by radial velocity (Multiple Facilities).

Fly there in 3D

Worth knowing

DMPP-2 c goes round its star every 3.17 days, 28 times as often as Mercury goes round the Sun.

The star

Spectral typeF5 V
Surface temperature6,500 K
Mass1.41 solar masses
Radius1.78 solar radii
Luminosity1.27 times the Sun
Apparent magnitude8.57
Ageabout 2 billion years
Distance from the Sun449.9 light-years (137.9 parsecs)
Position (J2000)RA 27.4077°, Dec -34.4591°
ConstellationFornax

Planets (3)

PlanetYearOrbitRadiusMassFound
DMPP-2 c3.17 days0.0479 AU8.26 R⊕ estimated51.79 M⊕ minimumRadial Velocity, 2026
DMPP-2 b5.20 days0.0664 AU14.2 R⊕ estimated171.48 M⊕ minimumRadial Velocity, 2019
DMPP-2 d16.5 days0.143 AU11.6 R⊕ estimated91.79 M⊕ minimumRadial Velocity, 2026

Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.

Sources

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